Marks Gun Works - CUSTOM RIFLES FOR THE DISCERNING SHOOTER Manufacturing, Precision,Gunsmith, NFA, Silencers,Firearms,Shooting, Transfer,Marks Gunworks, Frisco, TX, Custom Rifles,Sales, Custom, Threading, Muzzle brake, Accurate Rifle. Triggers, MK13, mod 7, for sale,thunderbeast arms, tbac, Our Goal is to provide an unsurpassed value and service experience.Our passion is improving rifles for precision and reliability. We will customize your weapon for your specific needs. We specialize in building custom competition or hunting rifles.